[tex]a).(2^4)^7-2^2^8=2^2^8-2^2^8=0 \\ \\ b).(3^5)^4:3^1^9=3^2^0:3^1^9=3^{20-19}=3^1=3 \\ \\ c).(5^8)^7:(5^5^3*5)=5^5^6:5^{53+1}=5^5^6:5^5^4=5^{56-54}=5^2=25 \\ \\ d).(7^7)^7:(7^7^7:7^7^*^5)=7^4^9:(7^7^7:7^3^5)=7^4^9:7^{77-35}= \\ \\ =7^4^9:7^4^2=7^{49-42}=7^7 [/tex]
[tex]e).(13^8)^1^3:(13^2^6)^4=13^{104}:13^{104}=1 \\ \\ f). 7^{ 13^{2} } :(7^4^2)^4=7^1^6^9:7^1^6^8=7^{169-168}=7^1=7 \\ \\ g). 2^{ 7^{2} } :(2^8)^6=2^4^9:2^4^8=2^{49-48}=2^1=2 \\ \\ h). 3^{ 8^{2} } : 3^{ 4^{3} } =3^6^4:3^6^4=1[/tex]